There are a few spellings in the 17th edition of The Chicago Manual of Style that differ from the 16th edition. Below are the ones I’ve found. If you have a copy of my Proofreading Secrets of Best-Selling Authors, you may want to mark these pages.

7.80: Terms like “web” and “internet”

Terms related to the internet are capitalized only if they are trademarked as such or otherwise constitute the proper name of an organization. Generic terms that are capitalized as part of a proper name may be lowercased when used alone or in combination. Examples: